Im looking at designing a wan network, I will have on each site a primary line and a backup line from one provider, then I want to include a third internet connection that backs up them 2 lines but this will be from a different provider.
How would it be best to do this? on the internet router would it be best to use DMVPN, but include it in the same eigrp routing process from my primary provider? what do most people do for this design ?
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Can't say its best, or speak on what most might do, but I prefer, if possible, to treat VPN site-to-site, from a routing perspective, similar to other WAN routers. I've done this quite a bit, haven't had any issues, although if WAN routers are using BGP across a L3 VPN cloud, you got to think some about how you're going to route across VPN.
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